Frigga and Thor.
Frigga had been there for at least part of it. She had been proud to see that both of her sons had settled down when she'd arrived. Settled down with families started. No doubt that was a bit of a jolt for Thor to walk back into.
She was jolted out of this revery when he reached out for a hug. She was never one to deny affection from either of her sons. Her own arms wrapping around him and held him to her tight. It was the sort of thing a Mother basked in. Especially after... well she didn't even let that part enter her mind. He was here, he was whole. He was Thor.
"I am now that you've returned. There is only so much a Mother can do without her children. I did manage to adopt another, in your absence. Not to fill your place, mind, but because he needs a home." She nodded over to the very tall dark haired knight.